| Groups (developers) | Abbr. | Country | City | Rating | |
|---|---|---|---|---|---|
| Three Rivers Software | 0.00 ±0.0 | ||||
| Tiger Developments | 0.00 ±0.0 | ||||
| Tiger Soft | 0.00 ±0.0 | ||||
| Tight | Poland | 0.00 ±0.0 | |||
| Tilt | 0.00 ±0.0 | ||||
| TiRED | 0.00 ±0.0 | ||||
| Titan Programs | 0.00 ±0.0 | ||||
| Titanic Software | 0.00 ±0.0 | ||||
| TJS Industries | 0.00 ±0.0 | ||||
| TK Computer Products | 0.00 ±0.0 | ||||
| Tom Snyder Productions, Inc. | 0.00 ±0.0 | ||||
| TOMS | Poland | Warsaw (Warszawa) | 0.00 ±0.0 | ||
| Top Odin | Poland | 0.00 ±0.0 | |||
| Top-Magazin | 0.00 ±0.0 | ||||
| Trilobit | Finland | 0.00 ±0.0 | |||
| Tristesse | Poland | Cracow (Kraków) | 0.00 ±0.0 | ||
| Tron Software | 0.00 ±0.0 | ||||
| TSQ | Germany | 0.00 ±0.0 | |||
| Turbo Software | 0.00 ±0.0 | ||||
| Turkish Atari Computer Freaks | Turkey | 0.00 ±0.0 |
